You don't, and there's a reason for that. You have BootMii/IOS and you are trying to restore a NAND dump, which is disallowed because it is VERY dangerous. That's why you must have a GC controller and press all those buttons, you have to be SURE you want to do it. If you can access BootMii/IOS, there IS a better way to fix your Wii. Maybe we can help if you tell us why you need to restore your NAND?